Adjustable hanger for incandescent lamps.



PATENTBD MAY 5, 1903.

P. P. KELLER. ADJUSTABLE HANGER FOR INGANDESGENT LAMPS.

APPLICATION FILED JUNE 18, 1902.

.NO MODEL.

mama. WASHINOYON u c Patented May 5, 1903.

{PATENT OFFICE.

PETER PAUL KELLER, OF KNOXVILLE, TENNESSEE.

ADJUSTABLE HANGER FORINCANDESCENT LAMPS.

SPECIFICATION forming part of Letters Patent No. 727,150, dated May 5,1903- Application filed June 18, 1902.

To all whomit may concern:

Be it known that I, PETER PAUL KELLER, a citizen of the United States,residing at Knoxville, in the county of- Knox and State of Tennessee,have invented a new and useful Adjustable Hanger for Incandescent Lamps,of which the following is a specification.

Thisinventionisanadjustablehangerforincandescent lamps, the object beingto provide a simple and inexpensive appliance which can be connected tothe circuit-wires suspending an ordinary incandescent lamp by means ofwhich the lamp can be raised or lowered, as desired, the circuit-wiresbeing wound upon a drum contained within acasing.

The invention consists in the novel features of construction andcombination, all of which will be fully described hereinafter andpointed out in the claim. I

In the drawings forming part of this specification, Figure 1 is aperspective view showing the adjustable hanger connected to thecircuit-wires suspending an ordinary incandescent lamp. -Fig. 2 is aview showing one side of the case removed. Fig. 3 is a transversevertical sect-ion taken through the hanger, certain parts being shown inelevation. Referring to the drawings, A-indicates the circuit-wirestwisted together, B the ordinary socket, and O the. ordinaryincandescent lamp connected thereto. V V

A casing D, essentially circular in shape, is constructed of twosections connected together at the upper and lower ends, said upper andlower ends being shaped into guide portions D to guide, the wire in andout of the case, and an insulating-bushing E is arranged between thesections of the case for the purpose of securely insulating the wirefrom the said case. A shaft F is arranged within the case, the ends Fbeing polygonal in cross-section, and thereby held against rotationwithin the case. A drum G is loosely mounted upon the shaft F, said drumhaving guide-flanges G at each side. The strands of the wire A areconnected to thedrum at two points by means of staples G said wire beingso connected that when the drum is revolved in one direction the wirewill be wound thereon from each end, and when the drum is revolved inthe opposite direction the wire will be unwound or reeled off inopposite direction or toward each end. In order to so op-Seria1N0.l1Z,187. (N0 model.)

erate the drum, I employa fiat convolute spring H, one end of which isrigidly connected to the shaft F and the other end connected to the drumG, it being understood that the saidspring is arranged about the employa ratchet-disk I, which is fixed upon the drum G between the drum andside of the case, and pivoted to the side of the case and adapted forengagement with the ratchetdisk is a pawl K, said pawl being adapted toengage the ratchet-disk whenever the revo lution of the drum is checked.It will thus be seen that when it is desired to raise or lower the lampit is only necessary to pull down upon the wire sufficiently todisengage the pawl, and then the drum can be revolved in the desireddirection .to either wind or unwind the wire, so that the lamp is raisedor lowered, as required, and after the desired adjustment has beenobtained the pawl will drop back into engagement with the ratchetdisk,andthereby hold the hangerin a fixed position.

It is obvious that the hanger can be made of any desirable materialand'any suitable shape, and it will also be understoodthat certainchanges or alterations can be made both in the construction orarrangement of the various parts without departing from the principle ofmy invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

In an adjustable hanger, the combination with a casing, a revoluble drummounted therein, a suspending cording extending through the casing, saidcording comprising two twisted members or strands, one strand passingaround one side of the drum and the other around the opposite side ofthe drum, and means for locking the drum against rotation.

PETER PAUL KELLER.

'Witnesses:

T. W. FISK, H. H. SCHROEDER.

